Water-heater.



PATENTED NOV. 26, 1907.

A TTOR/VE Y5 *UNIT? 1 D s'rAr'Es aosER'r ALLEN HEFFLEY, or DENVER,coLoRAno.

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Specification of Letters Patent.

Patented Nov. 26, 1907.

Application filed August 11.1906. Serial No- 830,198. Renewed October16.1907. Serial No. 397.676-

T all whom it may concern:

Be it known that I, ROBERT ALLEN HEE- FLE a citizen of the UnitedStates, residing at Denver, in the county of Denver and State ofColorado, have invented a new and useful Water-Heater, of which thefollowing is a specification. I

This invention relates to a device for heating water, other liquids, andair by the use of steam or other suitable heating media, and it relatesmore particularly to a device of this character which isof simple,inexpensive andpractical construction, and highly eflicient, inoperation. I

One. of the objects of the invention is the provisionof a heater inwhich the fluid to be heated is adually brought to the point of entrance0 the steam and is then returned so as to .prevent rapid condensation ofthe pltcalmi and effect a more even heating of the ui A further objectis the employment of a plurality of concentric tubes and a'commondistribution chamber arranged to receivethe fluid'being heated as itpasses out of the inner set of tubesand to deliver the fluid, after thesame has been completely min led, to the outerfset of; tubes. 'This chamer enables the fluid 'or liquid to be freed from impurities and alsopermits of the temperature of the liquid being equalized before passingto the outer tubes. Another object of the invention is to provideseparate chambers'at one end of the de-,

vice .by which the cold water enters and.

heated water leaves, the arrangement being such that the cold waterpassin through the inner tubes is subjected to the eatin efi'ect Withthese. objects in view, the invention comprises the various novelfeatures ofconstruction and arrangement of parts, which will'be morefully described hereinafter, and

set forthwith particularity in the appended claims.

In the accompanying drawing, illustrating right, is. a cas' one of theembodiments of the invention, is shown a longitudinal section of thedevice with portions broken away.

The present device is designed for several uses, such as a water heaterand purifier to be used in connection with boilers, a water or airheater for heating buildings, or for drying devices, or sea hot waterheater for furnishg water for scrubbing purposes, laundry work, and thelike. a p

. Referring to the drawings, 1 desi nates a steam cylinder oracket-having hea s 2 suitably secured thereto and each provided with athreaded flange 2- for engagement with the correspondingly threaded endsof the cylinder, as shown. The cylinder is preferably made of iron andmay be of any desired size. Extending longitudinally of the cylinder area plurality of tubes 3 that pass at their ends through the heads and areexpanded down upon the outer surfaces thereof. Steam or other heatingfluid is admitted to the cylinder at one end through the inlet conduit 4and circulates freely around the tubes 3 to effectively heat thesamelThe lower, or opposite, end of the cylinder is provided with a valveddrain 5 to permit the water of condensation to be drawn oil.

At one endof the cylinder, preferably the lower, when the cylinder is tobe used up- 6 which is extended below and 1s preferab y formed integralwith the lower head 2, said casing bem with a cap 7 having a removab ecover 8. The cap- 7, and short casing 6 are each provided with acircumferential flange 9 perforated to receive bolts 10 which hold thetwo together. Intermediate the flanges is a gasket 11 for preventingleakage. The upper end of the short cylinder or casing 6 isprovided withthe flange 2 sons to screw on the external thread 12 on the lower end ofthe .The casing 6 isdi provided vic ed into separate chambers orcompartments by means of a partition 13, preferably formed integral withthe cap 7 such partition forming a-headforsupporting the inner tubes 14.The lower ends of the inner tubes are threaded, or otherwise suitablysecured, in the wall 13, and from thewall the tubes extend upwardlythrough the chamber 15' of the casing 6 and into the outer tubes 3, saidinner tubes being extended slightly short of v their respectiveinclosing outer tubes.

the upper ends of the outer tubes and provided with spring fingers 15which bear against the outer tubes and serve to center said inner tubes.The inner tubes are thus in communication with the lower chamber orcompartment 16 of the cap 7, and the corresponding ends ofthe outertubes are in c.0mmunication with the upper compartment 15. The upperends of the inner tubes are open, so that fluid can flow between saidtubes and 11 order to e'fl'ect a better heating of the water, or'othermedium to be heated, with less condensation of thesteam, the water isled into the steam space of the cylinder by means of the set of innertubes, and-hence the compartment 16 forms an inlet chamber to which thewater is admitted by the conduit 1.7. The compartment 15, which formsthe outlet chamber of the device, discharges the heated water throughthe conduit 18.

At the upper end ofthe cylinder a distrib uting chamber is provided withwhich the upper ends of the tubes communicate. This chamber 19is formedby a cap 20 that is screwed on or otherwise suitably secured to a flangeon the upper head of the cylinder 1.

When the cap is screwed on, as shown, a squared extension 21 is providedfor the reception of a wrench for removing or replacing the cap. One ofthe objects of the chamber 19 is to permit of the scum and impurities inthe water being collected therein. An outi let conduit 22, which isrovided with 5. valve serves to draw off the impurities.

(not shown) pierces t e extension 21 and,

In operation, steam is admitted to the jacket 1 through the pipe 4, thequantity of steam being controlled in any suitable man ner. A The steamfilling the s ace around the outer tubes 3 and between t e heads 2operates to heat the water passing through the outer tube and throughthe chambers 15 and 19. The water flowing into the device asses upthrough the inner tubes 14 and is eated indirectly by the steam throughthe heated water passing through the space between the inner and outertubes. Since both the inner and outer tubes are in communication withthe upper chamber 19, the water can freely pass from the inner tubes tosaid chamber and the several streams thoroughly intermingle. Thispermits of the water in the diflerent parts of the chamber 19 beingequalized as to temperature'before passing down through the outer tubes.This is an important feature, for the reason that one side of theheating device may be exposed, insome cases, to a greater degreeofcold,so that the water in flowing u the tubes along" the relatively cold sidewi be heated to a less extent. The lower or outlet chamber 15 has thesame function of equalizing the temperature of the water before passingout through the discharge pipe. From the up-' the heating efl'ect ofthe-steam, so that by the time it reaches the outlet chamber 15, it willbe heated to the desired extent. It will be noted that the lowerportions of the inner tubes will have a cooling effect on the hot waterin the chamber 15. This is not' objectionable, for the reason that itpermits of the water being heated to such a" high degree as it passesdown through the steam cylinder as to free it of alkaline substances orother impurities and germs, and to-be cooled by the cold water passingthrough the lower end of the inner tubes, so that the water canbe usedfor such purposes as scrubbing, without being too hot for the hands. a

I have described the principle of operation of the invention, togetherwiththe apparatus which i now consider to be thebest embodiment thereof,but I desire to have it understood that the apparatus shown is merelyillustrative, and that various changes may be made, when desired, as arewithin the scope of the invention. What is claimed is 1. In a device ofthe class described, the

combination of a jacket, a compartment at one end thereof, and sets oftelescopic tubes communicating at corresponding ends with each other andwith the compartment.

2. In a device of the-class described, the combination of a jacket,separate compartments atone end, a single compartment at the oppositeend of the jacket, and a set of tubes extending from each of saidseparate compartments and communicating withthe said single compartment.j

v3.In a device of the class described, the

combination of a cylinder adapted to containa heating fluid and havingoppositely disposed heads a distributing chamber disposed above one oithe heads, tubes connecting said heads, a casing at theoppositefhead ofthe cylinder, a partition dividing the casing into separatecompartments, and tubes secured tubes communicating with the saidchamber and the inlet compartment.

5. In a device of the class described, the

combination of a cylinder adapted to contain a heating fluid, a casingsecured at one end of the cylinder and composed of separate sectionsremovably secured together and having a wall between them. for dividingthe-easing into two separate eom artments, an inlet conduit leading toone the compartments, an outlet conduit leading from the othercompartment, separate sets of tubes communieatin with the saidcompartments, and a 1 the cylinder, a 'intoseparate in cham er betweenone other.

6 In a device of the class described, the

set of tubes and the combination of a cylinder adapted to contain aheating fluid, a casing secured to one end of tubes communicate, andmeans arranged to permit impurities to be discharged from the saidchamber.

7. In a device of the class described, the

" combination with a cylinder adapted to contain a heating-fluid, acasing secured to one inder and communicating with the inlet comendofthe cylinder, a partition dividing the easing into separate inlet andoutlet compartments, tubes extending through the cylpartment, tubesextending through the first mentioned tubes and communicating withpartition dividing the easingv the inlet compartment, spring fingerscarried by some of the tubes and bearin against the interior walls ofthe ad'aeent tu es, a chamber at the opposite en of 'the cylinder withwhich the inlet and outlet tube communicate, and means arranged topermit impurities to be discharged from said chamber.

8. In a device of the class described, the combination with a cylinderadaptedto. contain a heatin fluid, a casing secured to one end of 'theey inder, a partition dividing the easing into separate inlet and outletcompartments one of which is provided With a detachable cover, tubesextending throu h the cylinder and eommunieating'with t e inletcompartment, tubes extending through the first mentioned tubes andcommunieating 'with inlet compartment, the inner tubes terminating shortof the outer tubes and having laterally extending spring fingers adaptedto bear against the interior walls of 'said outer tubes, a chamber atthe opposite end of the cylinder with which the inner and outer tubescommunicate, and means for permittin the discharge of impurities fromsaid cham er. I I

In testimony that I claim the foregoing as my oWn, I have hereto affixedmy signature in the presence of two Witnesses.

ROBERT ALLEN HEFFLEY.

Witnesses:

PATRICK MONAMARA, ALONZO H. LAYTON.-

